Features: `Operation from 2.2V to 5.5V input
` ±1% accuracy over temp range
` Output voltage from 0.8V to 3.6V in 50mV increments
` 30 A Quiescent current (enabled)
` 10nA Quiescent current (disabled)
` 160mV dropout at 200mA load
` 60 VRMSOutput voltage noise
` 60 s start-up time
` 500s shut-down time
` PSRR 55 dB at 10 kHz
`Stable with 0402 1.0F ceramic capacitors
`Logic controlled enable
` Thermaloverload and shortcircuit protection Operation from 2.2V to 5.5V inputApplication`Cellular phones
` Handheld information appliancesSpecificationsIf Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
VIN Pin: Input Voltage................... -0.3 to 6.0V
VOUT Pin: Output Voltage .........-0.3 to (VIN + 0.3V) to 6.0V
(max)
VEN Pin: Enable Input Voltage ...........-0.3 to 6.0V (max)
Continuous Power Dissipation
(Note 3)....................... Internally Limited
Junction Temperature (TJMAX) ..................150°C
Storage Temperature Range............... -65 to 150°C
Maximum Lead Temperature
(Soldering, 10 sec.) .......................260°C
ESD Rating (Note 4)DescriptionThe LP5990 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low noise and low quiescent current.
The LP5990 will provide a 1.8V output from a low input voltage of 2.2V and can provide 200mA to an external load.
When switched into shutdown mode via a logic signal at the enable pin, the power consumption is reduced to virtually
zero.
Fast shut-down is achieved by the push pull architecture.
The LP5990 is designed to be stable with space saving 0402 ceramic capacitors as small as 1µF, this gives an overall solution size of < 2.5mm 2.
Performance is specified for a -40°C to 125°C junction temperature range.
The device is available in micro SMD Package (0.4mm pitch) and is available with 1.2V,1.3V,1.8V,2.8V,3.0V,3.3V and 3.6V outputs.Lower voltage options down to 0.8V are available on request. For all other output voltage options please contact your local NSC sales office.
Application Notes
| Title |
Size in Kbytes |
Date |
|
| AN-1584: Application Note 1584 LP5990 microSMD Evaluation Board |
261 Kbytes |
13-Jun-07 |
Download |
AN-1584 (Japanese): Application Note 1584 LP5990 microSMD Evaluation Board
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
99 Kbytes |
|
|
If you have trouble printing or viewing PDF file(s), see Printing Problems.
|
More Application Notes
| Title |
Size in Kbytes |
Date |
|
| AN-1377: Application Note 1377 LP3996 / LP5996 Application Board Information |
514 Kbytes |
3-Nov-06 |
Download |
AN-1377 (Chinese): Application Note 1377 LP3996 / LP5996 Application Board Information
|
232 Kbytes |
|
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
If you have trouble printing or viewing PDF file(s), see Printing Problems.
|
LP5990 Data Sheet
